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13907212 = 2211316073
BaseRepresentation
bin110101000011…
…010100001100
3222011120002221
4311003110030
512030012322
61214025124
7226131544
oct65032414
928146087
1013907212
117939770
1247a81a4
132b5c127
141bc0324
15134a9c7
hexd4350c

13907212 has 12 divisors (see below), whose sum is σ = 26550216. Its totient is φ = 6321440.

The previous prime is 13907167. The next prime is 13907219. The reversal of 13907212 is 21270931.

It is a super-2 number, since 2×139072122 = 386821091225888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13907219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157993 + ... + 158080.

It is an arithmetic number, because the mean of its divisors is an integer number (2212518).

Almost surely, 213907212 is an apocalyptic number.

It is an amenable number.

13907212 is a deficient number, since it is larger than the sum of its proper divisors (12643004).

13907212 is a wasteful number, since it uses less digits than its factorization.

13907212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316088 (or 316086 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 13907212 is about 3729.2374555665. The cubic root of 13907212 is about 240.4805879304.

The spelling of 13907212 in words is "thirteen million, nine hundred seven thousand, two hundred twelve".

Divisors: 1 2 4 11 22 44 316073 632146 1264292 3476803 6953606 13907212